The invention discloses a reinforcement protection method, sever and system for android app. The method comprises the following steps: obtaining an initial android package APK of the android app; decompiling the initial APK, extracting protected method codes from the initial APK, and filling an extraction position with nop; encrypting the extracted protected method codes according to an appointed encryption and decryption strategy to generate a reinforcement configuration file; adding the appointed encryption and decryption strategy, the reinforcement configuration file and a reinforcement protection program into the decompiled APK, and compiling to generate a reinforcement APK of the android app. According to the technical scheme provided by the invention, protected methods can be dynamically encrypted and decrypted, and complete dex mapping does not exist in a memory at any moment, so that a complete dex file is prevented from being obtained in a memory dump manner and the probability of repacking and redistribution of the android app due to reverse analysis is greatly reduced.

Reinforcement protection method, sever and system for android app

The invention relates to an application program installation package processing method and device, and a mobile apparatus The method comprises the steps that an executable file in an application program installation package is obtained; the executable file is decompiled, and an intermediate file is obtained; function codes are implanted into the intermediate file; the intermediate file with the implanted function codes is recompiled and repackaged into a new executable file; the executable file in the application program installation package is replaced with the new executable file According to the application program installation package processing method and device, and the mobile apparatus, the flexibility of the protection of the executable file is improved, and the safety of the software installation package is improved

Application program installation package processing method and device, and mobile apparatus

The invention discloses an SO file protection method and device and an android installation package reinforcement method and system. The SO file protection method includes the steps of writing a to-be-protected SO file in a shell procedure file as code data, and protecting the SO file in the shell procedure. According to the technical scheme, by adding a shell to the SO file and protecting the SO file, the multiple protection is achieved for the SO file, an important code of an android installation package is further stored in the SO file, the reinforcement protection is achieved for the android installation package with the protected SO file as a protection object, malicious programs can be effectively prevented from conducting disassembling analysis on the SO file, the security level of the content of the SO file is improved, and the safety level of the android installation package is improved.

SO file protection method and device and android installation package reinforcement method and system

The invention discloses an Android application strengthening method based on dynamic execution of dex and so files. Through an encryption method, key codes of an Android application are strengthened such that codes of the Android application are protected. The strengthening method comprises an encryption process and a decryption process and comprises following steps: strengthening key codes of the Android application during the encryption process; and decrypting when dynamic execution of the Android application. The Android application strengthening method based on dynamic execution of dex and so files has following beneficial effects: the C++ language is utilized for writing core dex decryption functions so that difficulty in decompilation is increased and the dex decryption functions are present in the form of a dynamic link library and encrypted; compared with the method of core dex dual encryption, key codes of the dynamic link library are encrypted and a JNI calling mechanism is removed during encryption; therefore, plaintext so files encrypted during encryption do not exist in a hard disk and stored in a memory; and the Android application strengthening method is higher in safety.

Android application strengthening method based on dynamic execution of dex and so files

The invention relates to a root-free running control method of an application program. The method comprises the following steps that a host application program calls an installation package in a reflective mode to serve as a host application program accessory resource of the host application program, the installation package and the host application program are different in name, the installation package is loaded, and a target application program is achieved; a monitoring module is called through the host application program, and the activity of the target application program is monitored; when it is monitored that the target application program needs to call unmatched resources, resource quotation of related calling orders is redirected, and correct resources can be provided for running of the target application program. The invention further relates to a root-free running control device of the application program, and the root-free running control device corresponds to the method. The target application program can run in the sandbox running environment, and the safety of the system can be ensured.

Root-free running control method and device of application program

The invention provides a reinforcing protection method and device for a software installation package. The reinforcing protection method for the software installation package comprises the steps of extracting a global configuration file and an executable file in the software installation package, analyzing the executable file to obtain first codes, inserting protection codes into the first codes to obtain second codes, encrypting the second codes, modifying the global configuration file according to entry points of the protection codes, and repackaging the modified global configuration file and the executable file to generate a reinforced installation package. According to the technical scheme, the protection codes are directly inserted into the codes of the executable file, program entries of the global configuration file are correspondingly modified, then reconfiguration of the executable file is achieved, and therefore in the program running process, the protection codes are executed first so as to carry out corresponding decryption processing; the executable file is processed directly, so that the flexibility of protection of the executable file is improved, and the safety of the software installation package is further improved.

Reinforcing protection method and device for software installation package

A method and apparatus for the reinforced protection of a software installation package, wherein the method for the reinforced protection of a software installation package comprising: extracting a global configuration file and an executable file in the software installation package (S202); parsing the executable file to obtain a first code (S204); inserting a protective code into the first code to obtain a second code, and encrypting the second code (S206); modifying the global configuration file according to an entry point of the protective code (S208); and repacking the modified global configuration file and the executable file to generate a reinforced installation package (S210). According to the technical solution, the protective code is directly inserted into the code of the executable file and the program entry of the global configuration file is modified accordingly, so as to realize reconfiguration of the executable file, therefore, the protective code is executed at first while a program runs, in order to carry out corresponding decryption; directly processing the executable file improves the flexibility in protecting the executable file and further improves the security of the software installation package.

Method and apparatus for reinforced protection of software installation package

The invention discloses a method and device for achieving APK file protection. The method comprises the steps that when a processing instruction aiming at a bytecode file of an APK file is detected, the bytecode file is acquired; a preset modifying file is called to modify codes of the bytecode file, and a corresponding pseudo bytecode file is generated according to the modified codes. Disassembling analysis of a rogue program on the bytecode file is effectively stopped, the safety level of the APK file is improved, and benefits of a developer and a user are protected.

Method and device for achieving APK file protection

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Reinforcing protection method and device for software installation package

SO file protection method and device and android installation package reinforcement method and system

Method and apparatus for reinforced protection of software installation package

Method and device for achieving APK file protection